[mira_talk] Getting gap4 to run with (K)Ubuntu 9.10 (Karmic Koala)

Just a short note for people who are delighted to shoot themselves in the 
foot, like me, and waste a few hours trying to stop the resulting blood 
fountain:

gap4 need "libg2c", a special Fortran/C library. With previous versions of 
(K)Ubuntu, that could simply be installed via apt-get (apt-get install 
libg2c0), but 9.10 does not have this package anymore (or at the moment).

Resolution: 
1) from an earlier distribution (9.04 is just fine), copy
      /usr/lib/libg2c.so.0.0.0 to 
      /usr/lib of your new distribution
2) set a link from libg2c.so.0 to libg2c.so.0.0.0
3) install libstdc++.so.5

gap4 then runs fine again *phew*

Bastien

PS: if you don't HAVE an earlier installation, or, like me, the upgrade from 
9.04 to 9.10 deleted the files: use virtualbox to install a 9.04 with libg2c, 
then copy over the files from the virtual machine to your real installation.
PPS: don't I just love these kind of hoops

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